Here’s the sneaky thing: not all red wines are created equal. A cool-climate Pinot Noir might clock in at a modest 12.5% ABV. That bottle holds about 9.4 units. But a bold, jammy Zinfandel or a shiraz from a hot year? It can easily hit 15% or even 16% ABV. That same 750ml bottle suddenly contains 12 units. Yikes.
So when you pick up a bottle, check the label. That little “ABV” percentage is the real star of the show. Higher ABV equals more units. It’s not just about taste; it’s about how fast your liver starts composing its resignation letter. And yes, I’m judging you if you’ve never looked at the ABV before tonight.
The glass-by-glass breakdown
Let’s make it personal. You pour a standard 175ml glass of that 13% red. That’s 2.3 units right there. A large 250ml glass—the kind you get at a generous friend’s house—is 3.3 units. Have two of those, and you’ve already hit the government’s daily guideline limit in one sitting. (Cue the embarrassed cough.)
Alcohol, mental health and the brain
And let’s be honest: who only pours a 175ml glass? Most of us fill it to the “yeah, that looks about right” line. That’s often closer to 200ml. Suddenly that “one glass” is 2.6 units. Add a second, and you’re at over five units before dinner even arrives. The wine giveth, and the math taketh away.
Irony alert: the wine industry loves when you don’t know this. They want you to feel sophisticated, not calculating. But knowing your units is like knowing the cheat codes to the game—it keeps you from a nasty surprise at 2 AM when you wonder why your head is pounding.
